The weekly profit P for a widget producer is a function of the number n of widgets sold. The formula is as follows, where Pis measured in thousands of dollars, n is measured in thous ands of widgets, and the formula is valid up to a level of 4 thous and widgets sold. P=-1 + 2.3n - 0.5n (a) Make a graph of P versus n. 1.5 0.5- of -0.5 -1 -1.5 -2.5 0.5 -0.5 -1 -1.5 -2.5 (b) Calculate P(0). P(0) = L Explain in practical terms what your answer means. This answer has not been graded yet. (c) At what sales level is the profit as large as possible? (Use the graph to find the value. Round your answer to the nearest whole number.) thousand widgets

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.